SN4 ""

No	Pattern	Freq
1	[adv] at the [noun sg] of [adj]	307
2	[adv] at the [noun] of [adj]	128
3	[adv] at the [noun] of [num]	100
4	[adv] at the [noun] of [det]	93
5	[adv] at the age of [adj]	63
6	[adv] at the age of [adj]	61
7	[adv] at the end of [adj]	42
8	[adv] at the end of [adj]	42
9	[adv] at the expense of [adj]	32
10	[adv] at the expense of [adj]	32
11	even at the [noun] of [adj]	29
12	only at the [noun] of [adj]	27
13	[adv] at the [noun pl] of [adj]	26
14	[adv] at the [noun] of this	24
15	[adv] at the [noun] of this	24
16	[adv] at the level of [adj]	18
17	[adv] at the level of [adj]	17
18	so at the [noun] of [adj]	12
19	[adv] at the beginning of [adj]	11
20	[adv] at the beginning of [adj]	11
21	[adv] at the [noun] of that	11
22	then at the [noun] of [adj]	11
23	[adv] at the [noun] of that	11
24	[adv] at the [noun] of [num ord]	10
25	[adv] at the [noun] of some	8
26	[adv] at the centre of [adj]	8
27	[adv] at the [noun] of each	8
28	often at the [noun] of [adj]	8
29	[adv] at the [noun] of each	8
30	[adv] at the centre of [adj]	8